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Changes in condom use after HIV diagnosis

Department of Epidemiology, National Institute of Public Health

Anne Eskild

Department of Epidemiology, National Institute of Public Health

Hohannes Thorvaldsen

The Olafia Clinic, Ulleval University Hospital, Oslo, Norway

We investigated changes in condom use after HIV diagnosis. The study population comprised 78 asymptomatic HIVinfected subjects recruited from a clinic in Oslo, Norway, during 1988-92. In total, 240 follow-up visits were carried out. The response variable was repeated measurements of whether or not condoms were always used during anal/vaginal intercourse at follow-up. The explanatory variables were: time from HIV diagnosis to follow-up, exposure group (heterosexually infected, homosexual men, or infected through injecting drug use), time of HIV diagnosis (before 1987 or later), and history of condom use before HIV diagnosis. Random effects logistic regression analysis was used to study incremental changes in condom use, accommodating an unbalanced repeated measurement design. The use of condoms increased monotonously over time after HIV diagnosis in all exposure groups. Condom use was least likely among injecting drug users, subjects diagnosed before 1987 and subjects without a history of frequent condom use before HIV diagnosis.

Key Words: condoms • injecting drug users • heterosexual transmission • HIV • homosexual men • random effects logistic regression analysis • repeated measurements • sexual behaviour.

Scandinavian Journal of Public Health, Vol. 28, No. 1, 71-76 (2000)
DOI: 10.1177/140349480002800112


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